I am having trouble with recording using the Blackmagic SDI capture card. I can only record for about 17-20 min before the video freezes, and the once that happens I cant reconnect to that card without restarting my computer. If i try to record again without restarting the computer I get the Blue screen of death. I am running Windows 7 and recording in to Sony Vegas 10. I have tried using a different SDI card, Video cards, motherboard, Hard drives, RAM cards, re installing and updating the Blackmagic drivers, and even re-installing windows. I have this same setup on several other computers and they work fine I don't know what the problem is with this one. Has anybody else had an issue like this or any suggestions on what i should do to try and remedy this problem? Any help would be appreciated.